The majority of the time I layer sounds to get the effect I need ingame. Like for camping at night, I play a fire, crickets, a night ambient with a few owls and such, leaves rustling...then if its raining, add in a rain sound, and a bit of wind. Which means I have to scroll around in my list and find all the sounds for that situation and turn them all on, then scroll to turn them off. Adding a "grouped list" would be very helpful. Perhaps a simple 'add group' entry, along with the 'add' button we have now. It could show up like an entry does now in the list. You can click checkboxes to the sounds you want to start, and when you hit play on it, it starts all the ones you linked to it. That way I could simply hit play on one I named "Night with wind and rain" and they all start and/or stop.